upgrade qr scanner version

android/app/build.gradle

@@ -44,7 +44,7 @@ android {
     defaultConfig {
         // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
         applicationId "com.akucommunity.aku_community_manager"
-        minSdkVersion 24
+        minSdkVersion 21
         targetSdkVersion 29
         versionCode flutterVersionCode.toInteger()
         versionName flutterVersionName

lib/ui/tool_pages/scan_page.dart

@@ -48,9 +48,9 @@ class _ScanPageState extends State<ScanPage> {
             onQRViewCreated: (controller) {
               _qrViewController = controller;
               controller.scannedDataStream.listen((event) {
-                if (tempText != event) {
+                if (tempText != event.code) {
-                  tempText = event;
+                  tempText = event.code;
-                  BotToast.showText(text: event);
+                  BotToast.showText(text: event.code);
                 }
               });
             },

pubspec.lock

@@ -337,7 +337,7 @@ packages:
       name: qr_code_scanner
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "0.0.13"
+    version: "0.3.4"
   rational:
     dependency: transitive
     description:

pubspec.yaml

@@ -40,7 +40,7 @@ dependencies:
   #划动组件
   carousel_slider: ^2.3.1
   #qrcode san
-  qr_code_scanner: ^0.0.13
+  qr_code_scanner: 
   #toast
   bot_toast: ^3.0.4